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Author SHA1 Message Date
Nick Mathewson
74d32dd493 If accept4 is absent, fall back to accept. 2012-02-21 20:39:17 -05:00
Nick Mathewson
a6492cb744 Avoid leaking fd in evutil_socket() by Linux. 
Found by Amarin Phaosawasdi
 2012-02-21 20:38:36 -05:00
Nick Mathewson
a3cec90961 Remove the last vestiges of _EVENT_USE_EVENTLIST 2012-02-20 14:07:08 -05:00
Nick Mathewson
8dbcf8d62b Merge branch '21_eventlist_v3_squashed' 2012-02-20 13:56:13 -05:00
Nick Mathewson
cad5753587 Add doxygen for event_base_dump_events 2012-02-20 13:56:01 -05:00
Nick Mathewson
c89b4e63f6 Refactor the functions that run over every event. 
Now there are appropriate "for each event", "for each fd", and "for
each signal" helpers that they can use; this makes the code a bit
simpler, and far less duplicated.

This lets me turn back on the functions I disabled when removing
eventlist.

Additionally, check more lists for circularity in
event_base_assert_ok().

Add typedefs for the callback types.

Name fewer things "ctx".

Adds an implementation of Floyd's tortoise-and-hare algorithm to check
for circularity in TAILQs and LISTs, to avoid the abuse of flags that
event_base_assert_ok() was doing before.

Suggested by Dave Hart.
 2012-02-20 13:55:23 -05:00
Nick Mathewson
65bc91c210 Fix an "unused return value" warning on write() in signal handler 2012-02-17 10:42:59 -05:00
Nick Mathewson
819e98ac7d Start work on a 2.1 changelog and whats-new 2012-02-16 01:21:42 -05:00
Nick Mathewson
a270728e28 Add another caveat to the TCP_DEFER_ACCEPT documentation 2012-02-15 21:27:52 -05:00
Mark Ellzey
5880e4a1fc Support TCP_DEFER_ACCEPT sockopts for listeners 
A listening socket can be enabled with the sockopt
TCP_DEFER_ACCEPT. This informs the kernel to not call the user-land
accept() until real data has been written to the socket.

A new flag LEV_OPT_DEFERRED_ACCEPT has been introduced to
automatically set this option. Optionally
evutil_make_tcp_listen_socket_deferred() can be called manually.

(Tweaked slightly by nickm.)
 2012-02-15 21:19:28 -05:00
Nick Mathewson
a220a08139 Merge remote-tracking branch 'github/21_fast_syscalls' 2012-02-15 21:07:44 -05:00
Nick Mathewson
a63ed16186 Merge remote-tracking branch 'origin/patches-2.0' 2012-02-15 20:26:52 -05:00
Nick Mathewson
bec50680a3 Stop crashing in evdns when nameserver probes give a weird error 
When a nameserver is down, we periodically try sending a "probe"
message to that nameserver to see if it has come back up.  If a
nameserver comes up, we cancel any pending probe messages.

Cancelling a probe message while handling the probe's response would
result in a access-after-free or a double-free, so when we notice that
we're about to call a nameserver up because of having received a probe
from it, we need to check whether current response is the response
from the probe.

There was a case where we didn't to that, though: when the resolver
gave us an unusual error response to our request that it resolve
google.com.  This is pretty rare, but apparently it can happen with
some weird cacheing nameservers -- the one on the mikrotik router, for
example.  Without this patch, we would crash with a NULL pointer
derefernce.

Thanks to Hannes Sowa for finding this issue and helping me track it
down.
 2012-02-15 20:25:31 -05:00
Nick Mathewson
a37cbfdafc Merge remote-tracking branch 'origin/patches-2.0' 
Conflicts:
	configure.in
 2012-02-14 15:44:03 -05:00
Mark Ellzey
2d67b63853 Changed OPENSSL_LDFLAGS to OPENSSL_LIBADD 2012-02-14 15:37:58 -05:00
Mark Ellzey
9278196847 Added OPENSSL_LDFLAGS env variable which is appended to SSL checks. 
If openssl is not installed system-wide or not compiled as a shared library,
some systems require various link flags (e.g., -ld).
 2012-02-14 15:01:02 -05:00
Nick Mathewson
2ed4430225 If open(O_CLOEXEC) fails, fall back to fcntl(CLOEXEC) 
This is needed for folks who build with recent Linux kernel headers
but run with older kernels.
 2012-02-14 11:48:55 -05:00
Nick Mathewson
f088d0c52e Fix up usage of reserved identifiers in ht-internal.h 2012-02-13 18:34:00 -05:00
Nick Mathewson
4900c5f96e Port changes from Tor for ht-internal.h 2012-02-13 18:04:05 -05:00
Nick Mathewson
46e5bb7bdc Invert the sense and the name of HT_CACHE_HASH_VALUES 
This is meant to make it easier to merge ht-internal.h back upstream
into Tor.
 2012-02-13 17:59:14 -05:00
Nick Mathewson
6c81be746c Synchronize with upstream tinytest 2012-02-13 17:49:17 -05:00
Nick Mathewson
a9dc063ceb Merge in a punctuation fix from upstream tinytest 2012-02-13 17:30:46 -05:00
Nick Mathewson
bbea8d6bc5 Move libevent 1.x headers to include/, to put all public headers in one place. 2012-02-13 12:45:07 -05:00
Nick Mathewson
2793197663 Merge remote-tracking branch 'origin/patches-2.0' 2012-02-11 21:20:47 -05:00
Nick Mathewson
03dce42dfa Tweak the evutil_open_closeonexec patch to work on windows, old unixes. 
Windows doesn't have a mode_t as far as I can tell.

Some unixes, iirc, don't like three-argument open without O_CREAT.
 2012-02-11 21:17:18 -05:00
Ross Lagerwall
d2b5f7223a Make uses of open() close-on-exec safe by introducing evutil_open_closeonexec. 
In a multi-process/threaded environment, opening fds internally
without the close-on-exec flag could leak fds to child processes.
 2012-02-11 21:10:22 -05:00
Nick Mathewson
a6503944dd Add a bufferevent_getcb() to find a bufferevent's current callbacks 2012-02-11 12:04:15 -05:00
Nick Mathewson
bf2c5a7797 Also make win32select.c conditional for IDE users 2012-02-10 23:56:49 -05:00
Nick Mathewson
87a7cded02 Merge branch 'ifdef' of git://github.com/rosslagerwall/libevent 2012-02-10 23:52:27 -05:00
Nick Mathewson
de69eb7ba9 Merge remote-tracking branch 'origin/patches-2.0' 2012-02-10 23:51:11 -05:00
Nick Mathewson
0c483170be Add an empty section to the changelog for 2.0.18-stable 2012-02-10 22:20:05 -05:00
Nick Mathewson
c5b6e46488 Merge remote-tracking branch 'origin/patches-2.0' 2012-02-10 22:18:19 -05:00
Nick Mathewson
5a807b7aa2 Correct a name in the credits. oops 2012-02-10 22:17:59 -05:00
Nick Mathewson
8fd7a243e8 Merge remote-tracking branch 'origin/patches-2.0' 2012-02-10 22:16:46 -05:00
Nick Mathewson
2d7bf0f78d Bump version to 2.0.17-stable-dev 2012-02-10 22:16:14 -05:00
Nick Mathewson
2d9154601e Merge remote-tracking branch 'origin/patches-2.0' 2012-02-10 18:50:17 -05:00
Nick Mathewson
83e58ccd30 Update the credits in the readme release-2.0.17-stable 2012-02-10 18:39:31 -05:00
Nick Mathewson
0cdbd642e3 Finalize the changelog 2012-02-10 18:36:10 -05:00
Nick Mathewson
2b0a2c4519 Fix compilation on osx 2012-02-10 18:04:04 -05:00
Nick Mathewson
539466e568 Merge remote-tracking branch 'origin/patches-2.0' 
Conflicts:
	Makefile.am
	WIN32-Code/event2/event-config.h
	configure.in
 2012-02-10 17:33:50 -05:00
Nick Mathewson
e49e289129 Update copyright notices to 2012 2012-02-10 17:29:53 -05:00
Nick Mathewson
8152b4c2b3 Bump version to 2.0.17-stable 2012-02-10 16:49:05 -05:00
Nick Mathewson
bac906c761 Prefer epoll_create1 on Linuxen that have it 2012-02-10 16:39:46 -05:00
Nick Mathewson
33fca629a6 Save some syscalls when constructing a socket for a bufferevent 2012-02-10 16:33:25 -05:00
Nick Mathewson
713e570ab4 Save some syscalls when creating evdns sockets 2012-02-10 16:32:50 -05:00
Nick Mathewson
af6c9d8ee6 Save syscalls when constructing listener sockets for evhttp 2012-02-10 16:32:32 -05:00
Nick Mathewson
a35f396f28 Use pipes for telling signals to main thread when possible 2012-02-10 16:25:53 -05:00
Nick Mathewson
ca76cd931f Use a wrapper function to create the notification pipe/socketpair/eventfd 2012-02-10 16:15:10 -05:00
Nick Mathewson
4970329a88 The LEV_OPT_CLOSE_ON_EXEC flag now applies to accepted listener sockets too 2012-02-10 16:14:09 -05:00
Nick Mathewson
7e9e289367 Minimize syscalls during socket creation in listener.c 2012-02-10 16:13:30 -05:00